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CVE-2022-23537

29
FAUCET Score

CVE-2022-23537 is a critical buffer overread vulnerability in PJSIP, an open-source multimedia communication library, affecting applications utilizing STUN, including PJNATH and PJSUA-LIB, across various Debian-based systems. This vulnerability, rated 9.8 CVSS (Critical), allows unauthenticated attackers to remotely execute arbitrary code or cause denial of service by sending a specially crafted STUN message with an unknown attribute. While a patch is available in PJSIP version 2.13.1, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.13.1CPE matchmatch criteria
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 45th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.debian.org / debian-lts-announce/2024/09/msg00030.html
github.com / pjsip/pjproject/commit/d8440f4d711a654b511f50f79c0445b26f9dd1e1
PatchThird Party Advisory
github.com / pjsip/pjproject/security/advisories/GHSA-9pfh-r8x4-w26w
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/08/msg00038.html
Mailing ListThird Party Advisory